Modeling MEMS & piezoelectric devices helps you optimize their complex The Physics, Applications, and Industries of MEMS Featured Video (Tutorial). Study the effect of thermal stress on resonant frequency. • Eigen Frequency Analysis with & without thermal stresses. • Change design to minimize the effect of. 9 Sep When and Where. Date and time: November 04, ( – PM) – Introduction to COMSOL (Plane Poiseuille Flow),. Microfluidics (H-Cell.
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Easy and Accurate Measurement of Blood Viscosity.
Electrostatic forces scale favorably as the device dimensions are reduced, a fact frequently leveraged in MEMS. When selecting the type of 2D approximation, you can choose the Generalized plane strain formulation. One of the tutorials shipped with the MEMS Module shows the mechanical response of a thickness shear quartz oscillator ttuorial with a series capacitance and its effect on the frequency response.
Previously, the principal value plots were only available for volumes and surfaces. When COMSOL compiles the equations, the complex couplings generated by these user-defined expressions are automatically included in the equation system.
The model estimates how much current and increase in The temperature of the plate is reduced to degrees C and thermal stresses are induced due to the difference in coefficients of thermal expansion.
tutrial You can easily perform lumped parameter extraction of capacitance, impedance, and admittance, and connect to external electrical circuits via SPICE netlists. With this approach, all functionality in the constituent physics interfaces is available for fluid-structure interaction FSI modeling. The new coupling matches the modern style, with a number of single-physics interfaces and multiphysics nodes to couple them together.
Micropump Mechanism Micropumps are key components of microfluidic systems with applications ranging from biological fluid handling to microelectronic cooling.
Its amplitude decays rapidly, often exponentially, through the depth of the material. SAWs are comso, in many kinds of electronic components, including filters, oscillators, and sensors. Easy and Accurate Measurement of Blood Viscosity. Ask us about modeling Sensors and Actuators, or find more examples, user stories, and models by visiting the:.
The stress field in a piezoresitive sensor computed with the built-in physics interface for piezoresistive materials in the MEMS Module. The new approach improves the flexibility and design options for your modeling of electromechanics.
This 2D axisymmetry model uses a parametric sweep of voltage to exhibit the nonlinear mechanical response to a linear variation in the electrical input. Popularity Popularity Date Published. By talking to one of our sales representatives, you will get personalized recommendations and fully documented examples to help you get the most out of your evaluation and guide you to choose the best license option to suit your needs.
Larger amplitude vibrations, which result in a non-linear response that cannot be modeled in That makes microscopic thermal actuators fast enough to be useful on the microscale, although thermal actuators are typically slower than capacitive or piezoelectric actuators.
A Mechanical losses check box is available in the new Heat Sources section of the Thermal Expansion node to control this behavior.
At small length scales, uttorial design of resonators, gyroscopes, accelerometers, and actuators must consider the effects of several physical phenomena in their operation. You can use these examples as a starting point for your own simulation work by downloading the tutorial model or demo app file and its accompanying instructions.
In electronic devices, they are often deployed as precision frequency resonators in, for example, quartz wrist watches.
Valveless pumps are often preferred in microfludic systems because they minimize the risk of You can include a variety of damping phenomena in your model: Piezoelectric Shear-Actuated Beam The model performs a static analysis on a piezoelectric actuator based on the movement of a cantilever beam, using the Piezoelectric Devices predefined multiphysics interface.
The elastic cantilever beam is one ttutorial the elementary structures used in MEMS designs.
Microresistor Beam This example illustrates the ability to couple thermal, electrical, and structural analysis in one model. Microresistors can be used in many applications where small perturbations or deflections are required to be applied to devices, almost instantaneously.
MEMS Module Updates – COMSOL® a Release Highlights
For modeling piezoresistive sensors, the MEMS Module provides several dedicated physics interfaces for piezoresistivity in solids or shells. Get a free 2-week trial by signing up for msms workshop in a location near you.
This model shows how to compute the anchor loss limited quality factor of a diamond disc resonator. Scroll down further to investigate examples and case studies from the different categories of MEMS and piezoelectric devices and transducers.
Microresistor Beam Microresistors allow for quick and accurate actuation or structural movement directly related to the electricity that is applied to them.
When and Where
The plot type Principal Stress can now be used for any kind of tensor principal values. Each mode can also be visualized by plotting its displacement field. By programming a wrapper function in